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CVE-2023-1277

25
FAUCET Score

CVE-2023-1277 is a critical command injection vulnerability affecting the kylin-system-updater up to version 1.4.20kord on Ubuntu Kylin, specifically within the InstallSnap function of the Update Handler component. This local attack allows an authenticated attacker to execute arbitrary commands with high impact on confidentiality, integrity, and availability. While the exploit has been publicly disclosed, there is no evidence of active exploitation, nor are there readily available Metasploit or Nuclei modules, and community discussion remains minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.4.20kordCPE matchmatch criteria
cpe:2.3:a:ubuntukylin:kylin-system-updater:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0181 is in the 96th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / cn-lwj/vuldb/blob/master/kylin-system-updater_vuln.md
ExploitThird Party Advisory
vuldb.com
Permissions RequiredThird Party Advisory
vuldb.com
Third Party Advisory